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GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Tables)
 3 Months Ended
Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Amortization of identifiable intangible assets
at March 31, 2013 and December 31, 2012 (in thousands):
 
March 31, 2013
 
December 31, 2012
 
 Gross
 
Accumulated Amortization
 
 Net
 
 Gross
 
Accumulated Amortization
 
Net
Completed technologies and patents
$
52,527

 
$
(51,650
)
 
$
877

 
$
52,720

 
$
(51,171
)
 
$
1,549

Customer relationships
49,441

 
(43,404
)
 
6,037

 
49,543

 
(42,828
)
 
6,715

Trade names
5,960

 
(5,960
)
 
—

 
5,970

 
(5,970
)
 
—

Capitalized software costs
5,934

 
(5,083
)
 
851

 
5,938

 
(4,985
)
 
953

Total
$
113,862

 
$
(106,097
)
 
$
7,765

 
$
114,171

 
$
(104,954
)
 
$
9,217